On 06/09/2011 02:33 PM, Loren Merritt wrote:

> On Tue, 7 Jun 2011, Justin Ruggles wrote:
> 
>> +cglobal vector_clip_int32_%1, 5,5,7, dst, src, min, max, len
>> +    movd      m4, mind
>> +    movd      m5, maxd
>> +    SPLATD    m4
>> +    SPLATD    m5
>> +%ifidn %1, sse2
>> +    cvtdq2ps  m4, m4
>> +    cvtdq2ps  m5, m5
>> +%endif
> 
> %ifidn %1, sse2
>      cvtsi2ss  m4, minm
>      cvtsi2ss  m5, maxm
> %else
>      movd      m4, minm
>      movd      m5, maxm
> %endif
>      SPLATD    m4
>      SPLATD    m5


why minm/maxm? is loading from memory faster than loading from a
register on x86-32?

-Justin
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